361604161 has 8 divisors (see below), whose sum is σ = 396078120. Its totient is φ = 328597248.

The previous prime is 361604149. The next prime is 361604197. The reversal of 361604161 is 161406163.

It can be written as a sum of positive squares in 4 ways, for example, as 102394161 + 259210000 = 10119^2 + 16100^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-361604161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361604101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366246 + ... + 367231.

It is an arithmetic number, because the mean of its divisors is an integer number (49509765).

Almost surely, 2^361604161 is an apocalyptic number.

It is an amenable number.

361604161 is a deficient number, since it is larger than the sum of its proper divisors (34473959).

361604161 is a wasteful number, since it uses less digits than its factorization.

361604161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733523.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 361604161 is about 19015.8923272088. The cubic root of 361604161 is about 712.4337304118.

The spelling of 361604161 in words is "three hundred sixty-one million, six hundred four thousand, one hundred sixty-one".